Added an empty AudioTransportProxy to AudioState.

webrtc/audio/audio_receive_stream_unittest.cc

Index: webrtc/audio/audio_receive_stream_unittest.cc
diff --git a/webrtc/audio/audio_receive_stream_unittest.cc b/webrtc/audio/audio_receive_stream_unittest.cc
index bde68ed3ae7edb79e3422f2f758350aebe44c638..65c87816b6eb34b7b2d136772b720ce9da0426e1 100644
--- a/webrtc/audio/audio_receive_stream_unittest.cc
+++ b/webrtc/audio/audio_receive_stream_unittest.cc
@@ -15,6 +15,7 @@
 #include "webrtc/audio/conversion.h"
 #include "webrtc/logging/rtc_event_log/mock/mock_rtc_event_log.h"
 #include "webrtc/modules/audio_coding/codecs/mock/mock_audio_decoder_factory.h"
+#include "webrtc/modules/audio_device/include/mock_audio_device.h"
 #include "webrtc/modules/bitrate_controller/include/mock/mock_bitrate_controller.h"
 #include "webrtc/modules/congestion_controller/include/mock/mock_congestion_controller.h"
 #include "webrtc/modules/pacing/packet_router.h"
@@ -74,10 +75,15 @@ struct ConfigHelper {
                                &event_log_) {
     using testing::Invoke;
 
-    EXPECT_CALL(voice_engine_,
-        RegisterVoiceEngineObserver(_)).WillOnce(Return(0));
-    EXPECT_CALL(voice_engine_,
-        DeRegisterVoiceEngineObserver()).WillOnce(Return(0));
+    EXPECT_CALL(voice_engine_, RegisterVoiceEngineObserver(_))
+        .WillOnce(Return(0));
+    EXPECT_CALL(voice_engine_, DeRegisterVoiceEngineObserver())
+        .WillOnce(Return(0));
+    EXPECT_CALL(voice_engine_, audio_transport());
+    EXPECT_CALL(voice_engine_, audio_processing());
+    EXPECT_CALL(voice_engine_, audio_device_module())
+        .WillOnce(Return(&mock_audio_device_));
+
     AudioState::Config config;
     config.voice_engine = &voice_engine_;
     audio_state_ = AudioState::Create(config);
@@ -177,6 +183,7 @@ struct ConfigHelper {
   MockRemoteBitrateEstimator remote_bitrate_estimator_;
   MockRtcEventLog event_log_;
   testing::StrictMock<MockVoiceEngine> voice_engine_;
+  MockAudioDeviceModule mock_audio_device_;
   rtc::scoped_refptr<AudioState> audio_state_;
   AudioReceiveStream::Config stream_config_;
   testing::StrictMock<MockVoEChannelProxy>* channel_proxy_ = nullptr;